Astonishing story of a Missouri woman who learned a shocking secret about her parents she says they were good parents. But it turns out investigators say they are both murderers. ABC's John Muller has the story. -- it's not like something out of a Hollywood movie script an idyllic childhood in a small farming community. -- Missouri before one girl now all grown up her churchgoing seemingly typical American family had some deadly secrets about mom and dad. This morning those memories are now in question after her mother and stepfather now when their seventies were both arrested in September for separate murders more than thirty years ago. Gerald -- charged with shooting his ex wife and her two children back in 1980 in Wyoming. In 1975. -- laden allegedly killed her ex husband whose remains were found inside an abandoned mine. The cause of death. A gunshot wound to the back of his head from now and a new interview in next week's People Magazine -- who calls the day she says the man who raised her since she was four. Admitted to her that he was a murderer. She said that he asked her what difference would it make if you knew. And she said if she knew it would give her peace and that he finally confessed to her. Who pleaded guilty and was sentenced to life in prison in November in his confession he said he killed his ex wife because she was trying to ruin his new relationship with Alice. Erica told us that despite everything that happened. Her stepfather gave -- the most beautiful life that he possibly -- Although her step father is passed was a complete shock Erica says she always had a feeling her mother wasn't telling her something. Her mother eventually telling her the dark secret. She killed -- but only because he was abusive and threatened to kill them both Dallas -- pleaded not guilty of first degree murder charges and is awaiting trial. Well Erica is left to make sense of a childhood now tainted she told us that she sees this as a war love story. One where her mother killed to protect herself and her stepfather killed to be with her mother. So now the father is in prison for life for his murder and the mother who pleaded not guilty could face the same -- for the murder that she's accused up her trial. Gets underway next month Robin George. -- for air had -- report but that. Thank you so much --

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